There are a number of conditions that must apply. Notable are suitable preservation environment, and stability.
If the animal has been preserved in ice and stayed frozen until now such as some cases of the Woolly Mammoth, they have the best chances. Their DNA is relatively easy to extract, although it had major problems with contamination from modern and ancient bacteria. This bacterial DNA massively outweighed the Mammoths' DNA, requiring massive use of computers to search the DNA as it was sequenced comparing it to known bacterial samples vs. Elephant DNA.
There are examples where extinct animal DNA has been found where it is a relatively bad environment, but a stably bad environment. For instance giant ground sloth bones were found in caves in deserts that were technically too hot for good preservation, but because the caves had little change in temperature or humidity there was still DNA to extract.
It is extremely rare to find DNA in fossilized animals. However, in a case discovered in the US, a 67 million year old Tyrannosaurus Rex was found with viable protein which could be use for comparing relation of species, but never cloning. The paleontologists found the preserved tissue inside bones fossilized with large amounts of iron and managed to extract small traces of protein. In this case the large amount of iron worked out as a preservative.
Often only Mitochondrial DNA is preserved. This is because most cells have several, or in some cases many mitochondria, and mitochondria additionally have an extra layer of protection. Mitochondrial DNA has been extracted from a very large number of relatively recently extinct animals that were poorly preserved.
Because the amounts of preserved ancient DNA in fossils is so tiny, very careful steps must be taken. Touching the remains bare handed, or even in some cases breathing on them can produce such massive contamination that the ancient DNA is a drop in the ocean. The remains, or more usually pieces of remains, are very carefully cleaned to try to remove as much outside contamination as possible. Samples are taken and put into a PCR (Polymerase Chain Reactioin), which causes the DNA to reproduce itself again and again and again, as much as possible.
Once results start to come in, it's off to the computers. Since the vast majority of DNA is contamination, specifically bacteria, computers are used to identify the chunks of bacterial DNA and mark them for exclusion as fast as possible. Once this gives an idea of what kind of original DNA is in the sample, it's possible to modify the PCR process to target the original DNA and ignore the contaminant DNA.
This is done until there are enough pieces read in to start assembling them, often by matching them to what's thought to be the closest living relative.
Yes, DNA is found in virtually all living organisms, including animals. DNA is the genetic material that carries the instructions for an organism's development, functioning, and reproduction. It is present in the nucleus of cells in animals.
No, DNA is found in most living things (one of the very few exceptions being viruses, which is debatable if they are living), including plants and bacteria.
It is found on both.
Circular DNA can be found in animal cells within mitochondria and chloroplasts. Mitochondrial DNA is circular in structure and is separate from the nuclear DNA. Chloroplasts in plant cells also contain circular DNA.
Chromosomes.
Extinct animals are species that once existed but can no longer be found anywhere in the world. Dinosaurs are extinct as is the bird known as the Dodo. Living animals are still with us.Extinct animals are species that once existed but can no longer be found anywhere in the world. Dinosaurs are extinct as is the bird known as the Dodo. Living animals are still with us.Extinct animals are species that once existed but can no longer be found anywhere in the world. Dinosaurs are extinct as is the bird known as the Dodo. Living animals are still with us.Extinct animals are species that once existed but can no longer be found anywhere in the world. Dinosaurs are extinct as is the bird known as the Dodo. Living animals are still with us.Extinct animals are species that once existed but can no longer be found anywhere in the world. Dinosaurs are extinct as is the bird known as the Dodo. Living animals are still with us.Extinct animals are species that once existed but can no longer be found anywhere in the world. Dinosaurs are extinct as is the bird known as the Dodo. Living animals are still with us.Extinct animals are species that once existed but can no longer be found anywhere in the world. Dinosaurs are extinct as is the bird known as the Dodo. Living animals are still with us.Extinct animals are species that once existed but can no longer be found anywhere in the world. Dinosaurs are extinct as is the bird known as the Dodo. Living animals are still with us.Extinct animals are species that once existed but can no longer be found anywhere in the world. Dinosaurs are extinct as is the bird known as the Dodo. Living animals are still with us.Extinct animals are species that once existed but can no longer be found anywhere in the world. Dinosaurs are extinct as is the bird known as the Dodo. Living animals are still with us.Extinct animals are species that once existed but can no longer be found anywhere in the world. Dinosaurs are extinct as is the bird known as the Dodo. Living animals are still with us.
If we don't help them then they will be gone forever and are impossible to get back. Such as the dodo, the mammoth and many others. Scientists are trying to bring back the mammoth by extracting the DNA from a baby one found in Serbia. Many species of animals will be extinct before we even discover them. They just found a new species of ant in Canada 5 days ago. ======================================================== Extinct animals can't be saved. Actually, there's the possibility that some extinct species may be "brought back" by cloning them using tissue or DNA. Not all extinct animal left behind viable DNA. This may be possible with certain animals, but probably not all.
yes if they have DNA from the animal and use it to clone the animal. Otherwise, no.
possibly DNA duplication and genetic research to find the genetic code of the extinct species to possibly revive them
I have heard rumors that scientists have discovered a way of doing it but remember it was a rumor! but l think it's true!!^^ Scientists have begun attempting to bring back extinct animals by making a clone using DNA found in fossils. I do not know if they have succeeded
Yes, DNA is found in virtually all living organisms, including animals. DNA is the genetic material that carries the instructions for an organism's development, functioning, and reproduction. It is present in the nucleus of cells in animals.
DNA is in all living things. (plants, animals, etc.) Yes.
Scientifics find the dna from the animasl and they do some test and vertyfity which ones are endagered
Extinct means the animals no longer exist so there can be no extinct animals in the Sahara. If there were, they would not be extinct.
Extinct is when an animal or plant doesn't exist any longer on earth.
Extinct means the animals no longer exist. There are many extinct animals, from dinosaurs to dodos.
Millions of animals have been extinct even scientist don't know the number of animals have been extinct, or the names of animals have been extinct.